| 摘要 |
1,197,139. Securing sockets on shafts. ATLAS COPCO A.B. 5 Dec., 1968 [8 Dec., 1967], No. 57830/68. Heading B3N. In an impact nut runner, socket 15 is secured to shaft 11 of the impact wrench, by splines 17, 13 and a retaining pin 23 in transverse slots 20 adjacent the shaft end, the pin ends being movable from positions abutting the ends 18 of splines 17 to retain the socket on the shaft, to positions in axial alignment with the grooves between the splines 17 to release the socket. As shown, the slots 20 are inclined axially so that the pin is moved between its retaining and releasing positions by axial movement thereof. The pin is mounted in a rubber block 24 having a tail 25 which biases the pin 23 to its retaining position. Again, Fig. 4 (not shown), the tail 25 is replaced by a helical spring (27). Further, Figs. 5-7 (not shown), the slots 20 extend at right angles to the axis of the shaft, and the pin is rotated by a screwdriver engaging a slot in the block 24, a groove (34) in one end of the slots retaining the pin in its retaining position. Also, Figs. 8-10, (not shown), the block 24 is fixed in the bottom of the bore 21 and has an axial leg (35) carrying the pin which is moved transversely by depressing the leg against the spring force of a pair of integral webs (36). |
